Prophylactic fenestration (PF) has been reported to protect against recurrent intervertebral disc extrusion (IVDE), but recurrence is not always confirmed. No published studies address the cost-benefit of PF. Prophylactic fenestration requires additional surgical and anesthetic time, as well as further tissue dissection, all of which contribute to both surgical morbidity and the overall cost of veterinary care. Furthermore, PF is associated with adverse events such as hemorrhage, vertebral instability, further extrusion, iatrogenic discospondylitis, and nerve root trauma, but these are rare when performed by experienced surgeons, with a published complication rate of 0.01%.In this live webinar, Dr. Daniel Low discusses his recently published study on MRI follow-up of chondrodystrophic dogs that underwent prophylactic fenestration.